The person behind the systems

A builder’s itch.
A curious mind.

I’m Rakshan. I like building useful things, taking systems apart, and finding the assumptions that don’t survive a closer look. Software, AI, and cybersecurity are the threads that keep coming together.

My work lives where software meets security: turning noisy vulnerability scans into clear priorities, building threat-intelligence tools, and setting the boundaries AI agents operate within.

I’m a Senior Security Engineer at Sumitomo Mitsui Trust Bank (U.S.A.) Limited. I build production security software, lead AI security reviews, and turn policy into controls people can actually use.

On my own time, I’m building SealCheck and a multi-agent development harness. Both start with the same curiosity: what does it take to give AI useful capabilities while understanding its boundaries?

See what I’ve been building

01 / The path so far.

2023–present

Sumitomo Mitsui Trust Bank (U.S.A.) Limited

Senior Security EngineerDecember 2024–present

Security EngineerAugust 2023–December 2024

Building security platforms and the controls AI systems operate under.

Authored the bank’s AI Security Standard across nine control domains, including agent tool permissions, autonomy limits, and human approval requirements.
Established the AI Core Committee, lead the security review for every AI tool entering the bank, and manage two engineers.
Wrote AI vendor due-diligence requirements and an 11-clause contract bundle covering data handling, monitoring, and auditability.
Built VulTrack and ThreatNet; took Microsoft 365 Copilot from a 25-user pilot to an approved bank-wide rollout.
Own bank-wide application security and work with IT on AWS guardrails, infrastructure review, and automated misconfiguration detection.
Automated reporting across 32 risk categories and access recertifications, and built a versioned 700-control library.

2021–2022

11:11 Systems

Software EngineerNovember 2021–December 2022

Production data pipelines for cloud infrastructure, disaster recovery, and backup.

Built ETL and reporting pipelines with Python, PySpark, Cassandra, and REST APIs for internal analysts and a customer-facing cloud console.
Refactored legacy jobs and automated manual data cleaning.

2014–2020

Family hospitality group

Operations and Expansion Lead2014–2020

An earlier chapter in building and running businesses, before software engineering.

Grew the business from two hotels and three restaurants to three hotels and six restaurants, with 350+ employees.
Led a 30-room hotel build from land acquisition through opening, alongside finance, HR, vendors, and technology.

02 / Outside the day job.

Building, just because.

Custom gaming rigs, homelabs, and agent orchestration systems. I enjoy choosing the parts, wiring them together, and figuring out why they don’t behave quite as expected.

The bigger questions.

Physics, quantum mechanics, mathematics, and the universe. I love the feeling of an explanation clicking into place—and the questions that appear right after it.

03 / Foundations.

2025

CompTIA Security+

CompTIA

2021

Software Engineering

Flatiron School

2014

B.A. Economics

Queens College, CUNY

Let’s compare notes

Building something interesting?
I’d love to hear about it.

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